11. A division manager is considering investing in a new product. The divisions income is currently $465,000 with operating assets of $8 million. The new product would increase income by $270,000 and would require an additional investment in equipment of $1.5 million. The ROI of the division before and after the investment is respectively:

a.	5.8% and 7.7%	c.	7.7% and 5.8%
b.	11.6% and 15.8%	d.	Cannot determine

Time-series forecasting may be used to predict future values of a variable by:

a. A simple moving average c. Exponential smoothing

b. A weighted moving average d. All of the above